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Date and Time of the Query: 2019-06-25 T23:50:33 PDT
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For refcode 2009A&A...508..201B:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
2009A&A...508..201B The HI properties of galaxies in the Coma I cloud revisited Boselli, A.; Gavazzi, G. Abstract. Context: Pre-processing within small groups has been proposed to explain several of the properties of galaxies lying in rich clusters. Aims: The aim of the present work is to see whether pre-processing is acting in the nearby universe, where the structures that are merging to form rich clusters are large and massive. Methods: We study the HI gas properties of a large sample of late-type galaxies belonging to the Coma I cloud, an association of objects close to the Virgo cluster. Results: Contrary to what was previously claimed, late-type galaxies in the Coma I cloud are not deficient in HI gas (HI - def=0.06+/- 0.44). Conclusions: If the Coma I cloud is representative of infalling groups in nearby clusters, this result suggests that, in the local universe, the evolution of late-type galaxies belonging to loose structures with high velocity dispersions (>= 300 km s^-1^) associated with rich clusters such as Virgo is not significantly perturbed by pre-processing. Key words: galaxies: general, galaxies: ISM, galaxies: distances and redshifts, galaxies: clusters: general
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